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Tube forming dies allow for continuous extrusion of thick walled (relative to blown film extrusion) tubes and pipes. [5] The dies themselves are almost identical to those used in blown film extrusion; the only major difference is the gap between the inner mandrel and outer die wall.
Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.
A die is a specialized machine tool used in manufacturing industries to cut and/or form material to a desired shape or profile. Stamping dies are used with a press, [1] as opposed to drawing dies (used in the manufacture of wire) and casting dies (used in molding) which are not. Like molds, dies are generally customized to the item they are ...
Laser bonding is a marking technique that uses lasers to bond an additive marking substance to a substrate.. First invented in the mid 1990s by Essilor International, this patented method [1] produces permanent marks on metal, glass, ceramic and plastic parts for a diverse range of industrial and artistic applications, ranging from aerospace and medical to the awards and engraving industries.
Laser marking allows materials made of plastic and glass to be marked "on the move". The location where the marking takes place is called a "marking laser station", an entity often found in packaging and bottling plants. Older, slower technologies such as hot stamping and pad printing have largely been phased out and replaced with laser engraving.
From the 1950s onward, the method became a popular means of marking plastic . [4] Hot Stamping technology for plastic is used for electric components (TV frames, audio components, refrigerators etc.), cosmetic containers (lipstick, cream, mascara, shampoo bottle etc.), automobile parts (interior and exterior materials). [citation needed]